文献类型：期刊文献

中文题名：白果油的提取工艺及其化学成分研究

英文题名：Extraction Process and Chemical Components of Ginkgo Oil

作者：陈西娟[1] 王成章[1] 陈虹霞[1] 叶建中[1]

第一作者：陈西娟

机构：[1]中国林业科学研究院林产化学工业研究所国家林业局林产化学工程重点开放性实验室

年份：2010

期号：4

起止页码：838-843

中文期刊名：西北植物学报

外文期刊名：Acta Botanica Boreali-Occidentalia Sinica

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：江苏省自然科学基金项目(BK2008087);江苏省林业三项工程项目[lysx(2007-06)]

语种：中文

中文关键词：白果;白果油;不饱和脂肪酸;超临界CO2萃取

外文关键词：ginkgo seeds; ginkgo oil; unsaturated fatty acid; CO2SFE

分类号：Q501

摘要：采用正交实验对超临界CO2萃取白果油的工艺条件进行优化,比较超声波提取、索氏提取、超临界CO2萃取3种方式对白果油提取率的大小,用最佳提取方式分析不同品种白果中油脂的含量,并用GC-MS分析其成分。结果表明：（1）3种提取方式对白果油提取率的大小顺序为：超临界CO2萃取（添加夹带剂）〉索氏提取〉超声波提取。（2）超临界CO2萃取白果油的最佳工艺条件为：温度40℃、压力20 MPa、流速15 L/h、时间3 h并添加石油醚夹带剂,不同品种白果干粉中油脂得率为3.6%-7.11%。（3）GC-MS分析表明：从超临界萃取白果油中鉴定出17种化学成分,其中不饱和脂肪酸占85.4%;超声波和索氏提取相似,分别从提取的白果油中鉴定出10种和9种化学成分,其中不饱和脂肪酸含量分别为90.3%和90.1%;不饱和脂肪酸以十六、十八碳的为主。
CO2 supercritical fluid extraction（SFE） was optimized in this paper,and three extract methods of ultrasound,soxlet and SFE were compared as well.Ginkgo oil content in different kinds of ginkgo was determined by the best method,and the chemical components by GC-MS.Results showed：（1）Three different extract methods were ranked as follows：SFE（with entrainer） Soxletultrasound.（2）The best conditions for SFE（with entrainer） were 40℃,20 MPa,15 L/h,3 h,and in which condition,we could get the oil yield of 3.6%～7.11% from different cultivars.（3）GC-MS showed that there were 17 chemical substances extracted by SFE,and unsaturated fatty acids were 85.4%.Compared to SFE,there were 10 and 9 chemical substances extracted by ultrasound and Soxlet separately,which own unsaturated fatty acids of 90.3% and 90.1%,which mainly were C16,C18 unsaturated fatty acids.